Beautiful!
So beautiful that made me cry!
I didn't catch one paragraph though:
It was a day many years later, one nestled in the midst of summer. Her mother and he stood from a close distance and watched her and her husband play with their young son amongst the fireflies near the pond near their home. She had asked him quietly with a gentle smile on her face, and he had answered.

Very insightful, and I think Toshiro stayed in character. Nice job. I wish there were more of these types of fics ^^

Aw... cute! It reminded me of the song "Butterfly Kisses" by Bob Carlisle (sp.?)... Anyway, amazingness, imouto-chan!